https://www.bruegel.org/sites/default/files/2023-09/PB%2017%202023.pdf
https://www.politico.eu/article/eu-warn-financial-risk-andorra-monaco-san-marino/
https://energy.ec.europa.eu/system/files/2022-05/COM_2022_230_1_EN_ACT_part1_v5.pdf
file:///C:/Users/cooma_000/Downloads/EconPol_Policy_Report_02_2017_German_Account_Surplus.pdf